Ian Field wrote:


"Slater" wrote in message
...
Is it possible to damage an EPROM by exposing it to UV light for too
long? What if a portion of the EPROM stays unprogrammed ('FF') and the
chip goes through some program-erase cycles? The unprogrammed area
should fail sooner or later, shouldn't it?


The old ceramic packaged one's must be getting hard to find these days - can
flash ROMs be put in their place?

how long can those old ceramic+window things keep their memory? Some spec
sheets indicate some random number of decades, but is any of this true?